<template>

  <div class="login_container">

    <div class="login_box">
      <!--头像-->
      <div class="avater_box">
        <img src="../assets/logo.png">
      </div>
      <!--  登录表单   -->
      <el-form
        :model="loginForm"
        :rules="loginFormRules"
        ref="ruleForm"
        label-width="0px" class="login_form">
        <el-form-item label="" prop="username">
          <el-input v-model="loginForm.username"
                    prefix-icon="el-icon-user-solid"
          ></el-input>
        </el-form-item>
        <el-form-item label="" prop="password">
          <el-input v-model="loginForm.password"
                    prefix-icon="el-icon-lock"
                    type="password"
          ></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="submitForm('ruleForm')">登录</el-button>
          <el-button type="info" @click="resetForm('ruleForm')">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>

</template>

<script>
export default {
  name: 'login',
  data () {
    return {
      loginForm: {
        username: '',
        password: ''
      },
      loginFormRules: {
        username: [
          {
            required: true,
            message: '请输入登录用户名',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入登录密码',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur'
          }
        ]
      }
    }
  },
  methods: {
    submitForm (ruleForm) {
      this.$refs[ruleForm].validate(async (valid) => {
        if (!valid) {
          return
        }
        const { data: res } = await this.$http.post('login', this.loginForm)
        console.log(res)
        if (res.meta.status === 200) {
          this.$message.success('登录成功')
          window.sessionStorage.setItem('token', res.data.token)
          this.$router.push('/home')
        } else {
          this.$message.error('登录失败')
        }
      })
    },
    resetForm (ruleForm) {
      this.$refs[ruleForm].resetFields()
    }
  }
}
</script>

<style lang="less" scoped>

  .login_container {
    background-color: #2b4b6b;
    height: 1000px;
  }

  .login_box {
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .avater_box {
      height: 130px;
      width: 130px;
      border: 1px solid #eee;
      border-radius: 50%;
      padding: 10px;
      box-shadow: 0 0 10px #ddd;
      position: absolute;
      left: 50%;
      transform: translate(-50%, -50%);

      img {
        height: 100%;
        width: 100%;
        border-radius: 50%;
        background-color: #eee;
      }
    }

  }

  .btns {
    display: flex;
    justify-content: flex-end;
  }

  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 20px;
    box-sizing: border-box;
  }

</style>
